/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.iotdb.db.mpp.metric;

import org.apache.iotdb.commons.service.metric.enums.Metric;
import org.apache.iotdb.commons.service.metric.enums.Tag;
import org.apache.iotdb.metrics.AbstractMetricService;
import org.apache.iotdb.metrics.metricsets.IMetricSet;
import org.apache.iotdb.metrics.utils.MetricInfo;
import org.apache.iotdb.metrics.utils.MetricLevel;
import org.apache.iotdb.metrics.utils.MetricType;

import java.util.HashMap;
import java.util.Map;

public class DataExchangeMetricSet implements IMetricSet {

    private static final String metric = Metric.DATA_EXCHANGE_COST.toString();

    public static final Map<String, MetricInfo> metricInfoMap = new HashMap<>();

    public static final String SOURCE_HANDLE_GET_TSBLOCK_LOCAL = "source_handle_get_tsblock_local";
    public static final String SOURCE_HANDLE_GET_TSBLOCK_REMOTE = "source_handle_get_tsblock_remote";
    public static final String SOURCE_HANDLE_DESERIALIZE_TSBLOCK_LOCAL =
            "source_handle_deserialize_tsblock_local";
    public static final String SOURCE_HANDLE_DESERIALIZE_TSBLOCK_REMOTE =
            "source_handle_deserialize_tsblock_remote";
    public static final String SINK_HANDLE_SEND_TSBLOCK_LOCAL = "sink_handle_send_tsblock_local";
    public static final String SINK_HANDLE_SEND_TSBLOCK_REMOTE = "sink_handle_send_tsblock_remote";

    static {
        metricInfoMap.put(
                SOURCE_HANDLE_GET_TSBLOCK_LOCAL,
                new MetricInfo(
                        MetricType.TIMER,
                        metric,
                        Tag.OPERATION.toString(),
                        "source_handle_get_tsblock",
                        Tag.TYPE.toString(),
                        "local"));
        metricInfoMap.put(
                SOURCE_HANDLE_GET_TSBLOCK_REMOTE,
                new MetricInfo(
                        MetricType.TIMER,
                        metric,
                        Tag.OPERATION.toString(),
                        "source_handle_get_tsblock",
                        Tag.TYPE.toString(),
                        "remote"));
        metricInfoMap.put(
                SOURCE_HANDLE_DESERIALIZE_TSBLOCK_LOCAL,
                new MetricInfo(
                        MetricType.TIMER,
                        metric,
                        Tag.OPERATION.toString(),
                        "source_handle_deserialize_tsblock",
                        Tag.TYPE.toString(),
                        "local"));
        metricInfoMap.put(
                SOURCE_HANDLE_DESERIALIZE_TSBLOCK_REMOTE,
                new MetricInfo(
                        MetricType.TIMER,
                        metric,
                        Tag.OPERATION.toString(),
                        "source_handle_deserialize_tsblock",
                        Tag.TYPE.toString(),
                        "remote"));
        metricInfoMap.put(
                SINK_HANDLE_SEND_TSBLOCK_LOCAL,
                new MetricInfo(
                        MetricType.TIMER,
                        metric,
                        Tag.OPERATION.toString(),
                        "sink_handle_send_tsblock",
                        Tag.TYPE.toString(),
                        "local"));
        metricInfoMap.put(
                SINK_HANDLE_SEND_TSBLOCK_REMOTE,
                new MetricInfo(
                        MetricType.TIMER,
                        metric,
                        Tag.OPERATION.toString(),
                        "sink_handle_send_tsblock",
                        Tag.TYPE.toString(),
                        "remote"));
    }

    public static final String SEND_NEW_DATA_BLOCK_EVENT_TASK_CALLER =
            "send_new_data_block_event_task_caller";
    public static final String SEND_NEW_DATA_BLOCK_EVENT_TASK_SERVER =
            "send_new_data_block_event_task_server";
    public static final String ON_ACKNOWLEDGE_DATA_BLOCK_EVENT_TASK_CALLER =
            "on_acknowledge_data_block_event_task_caller";
    public static final String ON_ACKNOWLEDGE_DATA_BLOCK_EVENT_TASK_SERVER =
            "on_acknowledge_data_block_event_task_server";
    public static final String GET_DATA_BLOCK_TASK_CALLER = "get_data_block_task_caller";
    public static final String GET_DATA_BLOCK_TASK_SERVER = "get_data_block_task_server";

    static {
        metricInfoMap.put(
                SEND_NEW_DATA_BLOCK_EVENT_TASK_CALLER,
                new MetricInfo(
                        MetricType.TIMER,
                        metric,
                        Tag.OPERATION.toString(),
                        "send_new_data_block_event_task",
                        Tag.TYPE.toString(),
                        "caller"));
        metricInfoMap.put(
                SEND_NEW_DATA_BLOCK_EVENT_TASK_SERVER,
                new MetricInfo(
                        MetricType.TIMER,
                        metric,
                        Tag.OPERATION.toString(),
                        "send_new_data_block_event_task",
                        Tag.TYPE.toString(),
                        "server"));
        metricInfoMap.put(
                ON_ACKNOWLEDGE_DATA_BLOCK_EVENT_TASK_CALLER,
                new MetricInfo(
                        MetricType.TIMER,
                        metric,
                        Tag.OPERATION.toString(),
                        "on_acknowledge_data_block_event_task",
                        Tag.TYPE.toString(),
                        "caller"));
        metricInfoMap.put(
                ON_ACKNOWLEDGE_DATA_BLOCK_EVENT_TASK_SERVER,
                new MetricInfo(
                        MetricType.TIMER,
                        metric,
                        Tag.OPERATION.toString(),
                        "on_acknowledge_data_block_event_task",
                        Tag.TYPE.toString(),
                        "server"));
        metricInfoMap.put(
                GET_DATA_BLOCK_TASK_CALLER,
                new MetricInfo(
                        MetricType.TIMER,
                        metric,
                        Tag.OPERATION.toString(),
                        "get_data_block_task",
                        Tag.TYPE.toString(),
                        "caller"));
        metricInfoMap.put(
                GET_DATA_BLOCK_TASK_SERVER,
                new MetricInfo(
                        MetricType.TIMER,
                        metric,
                        Tag.OPERATION.toString(),
                        "get_data_block_task",
                        Tag.TYPE.toString(),
                        "server"));
    }

    public static final String GET_DATA_BLOCK_NUM = "get_data_block_num";

    @Override
    public void bindTo(AbstractMetricService metricService) {
        for (MetricInfo metricInfo : metricInfoMap.values()) {
            metricService.getOrCreateTimer(
                    metricInfo.getName(), MetricLevel.IMPORTANT, metricInfo.getTagsInArray());
        }
        metricService.getOrCreateRate(
                Metric.DATA_EXCHANGE_COUNT.toString(),
                MetricLevel.IMPORTANT,
                Tag.NAME.toString(),
                GET_DATA_BLOCK_NUM);
    }

    @Override
    public void unbindFrom(AbstractMetricService metricService) {
        for (MetricInfo metricInfo : metricInfoMap.values()) {
            metricService.remove(MetricType.TIMER, metric, metricInfo.getTagsInArray());
        }
        metricService.remove(MetricType.RATE, metric, Tag.NAME.toString(), GET_DATA_BLOCK_NUM);
    }
}
